src/main/java/net/pterodactylus/sone/core/Core.java

   1 /*
   2  * Sone - Core.java - Copyright © 2010 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.sone.core;
  19
  20 import java.net.MalformedURLException;
  21 import java.util.ArrayList;
  22 import java.util.Collections;
  23 import java.util.HashMap;
  24 import java.util.HashSet;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Set;
  28 import java.util.Map.Entry;
  29 import java.util.concurrent.ExecutorService;
  30 import java.util.concurrent.Executors;
  31 import java.util.logging.Level;
  32 import java.util.logging.Logger;
  33
  34 import net.pterodactylus.sone.core.Options.DefaultOption;
  35 import net.pterodactylus.sone.core.Options.Option;
  36 import net.pterodactylus.sone.core.Options.OptionWatcher;
  37 import net.pterodactylus.sone.data.Album;
  38 import net.pterodactylus.sone.data.Client;
  39 import net.pterodactylus.sone.data.Image;
  40 import net.pterodactylus.sone.data.Post;
  41 import net.pterodactylus.sone.data.Profile;
  42 import net.pterodactylus.sone.data.Reply;
  43 import net.pterodactylus.sone.data.Sone;
  44 import net.pterodactylus.sone.data.TemporaryImage;
  45 import net.pterodactylus.sone.data.Profile.Field;
  46 import net.pterodactylus.sone.fcp.FcpInterface;
  47 import net.pterodactylus.sone.fcp.FcpInterface.FullAccessRequired;
  48 import net.pterodactylus.sone.freenet.wot.Identity;
  49 import net.pterodactylus.sone.freenet.wot.IdentityListener;
  50 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  51 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  52 import net.pterodactylus.sone.freenet.wot.Trust;
  53 import net.pterodactylus.sone.freenet.wot.WebOfTrustException;
  54 import net.pterodactylus.sone.main.SonePlugin;
  55 import net.pterodactylus.util.config.Configuration;
  56 import net.pterodactylus.util.config.ConfigurationException;
  57 import net.pterodactylus.util.logging.Logging;
  58 import net.pterodactylus.util.number.Numbers;
  59 import net.pterodactylus.util.service.AbstractService;
  60 import net.pterodactylus.util.thread.Ticker;
  61 import net.pterodactylus.util.validation.EqualityValidator;
  62 import net.pterodactylus.util.validation.IntegerRangeValidator;
  63 import net.pterodactylus.util.validation.OrValidator;
  64 import net.pterodactylus.util.validation.Validation;
  65 import net.pterodactylus.util.version.Version;
  66 import freenet.keys.FreenetURI;
  67
  68 /**
  69  * The Sone core.
  70  *
  71  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  72  */
  73 public class Core extends AbstractService implements IdentityListener, UpdateListener, SoneProvider, PostProvider, SoneInsertListener, ImageInsertListener {
  74
  75         /**
  76          * Enumeration for the possible states of a {@link Sone}.
  77          *
  78          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  79          */
  80         public enum SoneStatus {
  81
  82                 /** The Sone is unknown, i.e. not yet downloaded. */
  83                 unknown,
  84
  85                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  86                 idle,
  87
  88                 /** The Sone is currently being inserted. */
  89                 inserting,
  90
  91                 /** The Sone is currently being downloaded. */
  92                 downloading,
  93         }
  94
  95         /** The logger. */
  96         private static final Logger logger = Logging.getLogger(Core.class);
  97
  98         /** The options. */
  99         private final Options options = new Options();
 100
 101         /** The preferences. */
 102         private final Preferences preferences = new Preferences(options);
 103
 104         /** The core listener manager. */
 105         private final CoreListenerManager coreListenerManager = new CoreListenerManager(this);
 106
 107         /** The configuration. */
 108         private Configuration configuration;
 109
 110         /** Whether we’re currently saving the configuration. */
 111         private boolean storingConfiguration = false;
 112
 113         /** The identity manager. */
 114         private final IdentityManager identityManager;
 115
 116         /** Interface to freenet. */
 117         private final FreenetInterface freenetInterface;
 118
 119         /** The Sone downloader. */
 120         private final SoneDownloader soneDownloader;
 121
 122         /** The image inserter. */
 123         private final ImageInserter imageInserter;
 124
 125         /** Sone downloader thread-pool. */
 126         private final ExecutorService soneDownloaders = Executors.newFixedThreadPool(10);
 127
 128         /** The update checker. */
 129         private final UpdateChecker updateChecker;
 130
 131         /** The FCP interface. */
 132         private volatile FcpInterface fcpInterface;
 133
 134         /** The Sones’ statuses. */
 135         /* synchronize access on itself. */
 136         private final Map<Sone, SoneStatus> soneStatuses = new HashMap<Sone, SoneStatus>();
 137
 138         /** Locked local Sones. */
 139         /* synchronize on itself. */
 140         private final Set<Sone> lockedSones = new HashSet<Sone>();
 141
 142         /** Sone inserters. */
 143         /* synchronize access on this on localSones. */
 144         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 145
 146         /** Sone rescuers. */
 147         /* synchronize access on this on localSones. */
 148         private final Map<Sone, SoneRescuer> soneRescuers = new HashMap<Sone, SoneRescuer>();
 149
 150         /** All local Sones. */
 151         /* synchronize access on this on itself. */
 152         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 153
 154         /** All remote Sones. */
 155         /* synchronize access on this on itself. */
 156         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 157
 158         /** All new Sones. */
 159         private Set<String> newSones = new HashSet<String>();
 160
 161         /** All known Sones. */
 162         /* synchronize access on {@link #newSones}. */
 163         private Set<String> knownSones = new HashSet<String>();
 164
 165         /** All posts. */
 166         private Map<String, Post> posts = new HashMap<String, Post>();
 167
 168         /** All new posts. */
 169         private Set<String> newPosts = new HashSet<String>();
 170
 171         /** All known posts. */
 172         /* synchronize access on {@link #newPosts}. */
 173         private Set<String> knownPosts = new HashSet<String>();
 174
 175         /** All replies. */
 176         private Map<String, Reply> replies = new HashMap<String, Reply>();
 177
 178         /** All new replies. */
 179         private Set<String> newReplies = new HashSet<String>();
 180
 181         /** All known replies. */
 182         private Set<String> knownReplies = new HashSet<String>();
 183
 184         /** All bookmarked posts. */
 185         /* synchronize access on itself. */
 186         private Set<String> bookmarkedPosts = new HashSet<String>();
 187
 188         /** Trusted identities, sorted by own identities. */
 189         private Map<OwnIdentity, Set<Identity>> trustedIdentities = Collections.synchronizedMap(new HashMap<OwnIdentity, Set<Identity>>());
 190
 191         /** All known albums. */
 192         private Map<String, Album> albums = new HashMap<String, Album>();
 193
 194         /** All known images. */
 195         private Map<String, Image> images = new HashMap<String, Image>();
 196
 197         /** All temporary images. */
 198         private Map<String, TemporaryImage> temporaryImages = new HashMap<String, TemporaryImage>();
 199
 200         /** Ticker for threads that mark own elements as known. */
 201         private Ticker localElementTicker = new Ticker();
 202
 203         /** The time the configuration was last touched. */
 204         private volatile long lastConfigurationUpdate;
 205
 206         /**
 207          * Creates a new core.
 208          *
 209          * @param configuration
 210          *            The configuration of the core
 211          * @param freenetInterface
 212          *            The freenet interface
 213          * @param identityManager
 214          *            The identity manager
 215          */
 216         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 217                 super("Sone Core");
 218                 this.configuration = configuration;
 219                 this.freenetInterface = freenetInterface;
 220                 this.identityManager = identityManager;
 221                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 222                 this.imageInserter = new ImageInserter(this, freenetInterface);
 223                 this.updateChecker = new UpdateChecker(freenetInterface);
 224         }
 225
 226         //
 227         // LISTENER MANAGEMENT
 228         //
 229
 230         /**
 231          * Adds a new core listener.
 232          *
 233          * @param coreListener
 234          *            The listener to add
 235          */
 236         public void addCoreListener(CoreListener coreListener) {
 237                 coreListenerManager.addListener(coreListener);
 238         }
 239
 240         /**
 241          * Removes a core listener.
 242          *
 243          * @param coreListener
 244          *            The listener to remove
 245          */
 246         public void removeCoreListener(CoreListener coreListener) {
 247                 coreListenerManager.removeListener(coreListener);
 248         }
 249
 250         //
 251         // ACCESSORS
 252         //
 253
 254         /**
 255          * Sets the configuration to use. This will automatically save the current
 256          * configuration to the given configuration.
 257          *
 258          * @param configuration
 259          *            The new configuration to use
 260          */
 261         public void setConfiguration(Configuration configuration) {
 262                 this.configuration = configuration;
 263                 touchConfiguration();
 264         }
 265
 266         /**
 267          * Returns the options used by the core.
 268          *
 269          * @return The options of the core
 270          */
 271         public Preferences getPreferences() {
 272                 return preferences;
 273         }
 274
 275         /**
 276          * Returns the identity manager used by the core.
 277          *
 278          * @return The identity manager
 279          */
 280         public IdentityManager getIdentityManager() {
 281                 return identityManager;
 282         }
 283
 284         /**
 285          * Returns the update checker.
 286          *
 287          * @return The update checker
 288          */
 289         public UpdateChecker getUpdateChecker() {
 290                 return updateChecker;
 291         }
 292
 293         /**
 294          * Sets the FCP interface to use.
 295          *
 296          * @param fcpInterface
 297          *            The FCP interface to use
 298          */
 299         public void setFcpInterface(FcpInterface fcpInterface) {
 300                 this.fcpInterface = fcpInterface;
 301         }
 302
 303         /**
 304          * Returns the status of the given Sone.
 305          *
 306          * @param sone
 307          *            The Sone to get the status for
 308          * @return The status of the Sone
 309          */
 310         public SoneStatus getSoneStatus(Sone sone) {
 311                 synchronized (soneStatuses) {
 312                         return soneStatuses.get(sone);
 313                 }
 314         }
 315
 316         /**
 317          * Sets the status of the given Sone.
 318          *
 319          * @param sone
 320          *            The Sone to set the status of
 321          * @param soneStatus
 322          *            The status to set
 323          */
 324         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 325                 synchronized (soneStatuses) {
 326                         soneStatuses.put(sone, soneStatus);
 327                 }
 328         }
 329
 330         /**
 331          * Returns the Sone rescuer for the given local Sone.
 332          *
 333          * @param sone
 334          *            The local Sone to get the rescuer for
 335          * @return The Sone rescuer for the given Sone
 336          */
 337         public SoneRescuer getSoneRescuer(Sone sone) {
 338                 Validation.begin().isNotNull("Sone", sone).check().is("Local Sone", isLocalSone(sone)).check();
 339                 synchronized (localSones) {
 340                         SoneRescuer soneRescuer = soneRescuers.get(sone);
 341                         if (soneRescuer == null) {
 342                                 soneRescuer = new SoneRescuer(this, soneDownloader, sone);
 343                                 soneRescuers.put(sone, soneRescuer);
 344                                 soneRescuer.start();
 345                         }
 346                         return soneRescuer;
 347                 }
 348         }
 349
 350         /**
 351          * Returns whether the given Sone is currently locked.
 352          *
 353          * @param sone
 354          *            The sone to check
 355          * @return {@code true} if the Sone is locked, {@code false} if it is not
 356          */
 357         public boolean isLocked(Sone sone) {
 358                 synchronized (lockedSones) {
 359                         return lockedSones.contains(sone);
 360                 }
 361         }
 362
 363         /**
 364          * Returns all Sones, remote and local.
 365          *
 366          * @return All Sones
 367          */
 368         public Set<Sone> getSones() {
 369                 Set<Sone> allSones = new HashSet<Sone>();
 370                 allSones.addAll(getLocalSones());
 371                 allSones.addAll(getRemoteSones());
 372                 return allSones;
 373         }
 374
 375         /**
 376          * Returns the Sone with the given ID, regardless whether it’s local or
 377          * remote.
 378          *
 379          * @param id
 380          *            The ID of the Sone to get
 381          * @return The Sone with the given ID, or {@code null} if there is no such
 382          *         Sone
 383          */
 384         public Sone getSone(String id) {
 385                 return getSone(id, true);
 386         }
 387
 388         /**
 389          * Returns the Sone with the given ID, regardless whether it’s local or
 390          * remote.
 391          *
 392          * @param id
 393          *            The ID of the Sone to get
 394          * @param create
 395          *            {@code true} to create a new Sone if none exists,
 396          *            {@code false} to return {@code null} if a Sone with the given
 397          *            ID does not exist
 398          * @return The Sone with the given ID, or {@code null} if there is no such
 399          *         Sone
 400          */
 401         @Override
 402         public Sone getSone(String id, boolean create) {
 403                 if (isLocalSone(id)) {
 404                         return getLocalSone(id);
 405                 }
 406                 return getRemoteSone(id, create);
 407         }
 408
 409         /**
 410          * Checks whether the core knows a Sone with the given ID.
 411          *
 412          * @param id
 413          *            The ID of the Sone
 414          * @return {@code true} if there is a Sone with the given ID, {@code false}
 415          *         otherwise
 416          */
 417         public boolean hasSone(String id) {
 418                 return isLocalSone(id) || isRemoteSone(id);
 419         }
 420
 421         /**
 422          * Returns whether the given Sone is a local Sone.
 423          *
 424          * @param sone
 425          *            The Sone to check for its locality
 426          * @return {@code true} if the given Sone is local, {@code false} otherwise
 427          */
 428         public boolean isLocalSone(Sone sone) {
 429                 synchronized (localSones) {
 430                         return localSones.containsKey(sone.getId());
 431                 }
 432         }
 433
 434         /**
 435          * Returns whether the given ID is the ID of a local Sone.
 436          *
 437          * @param id
 438          *            The Sone ID to check for its locality
 439          * @return {@code true} if the given ID is a local Sone, {@code false}
 440          *         otherwise
 441          */
 442         public boolean isLocalSone(String id) {
 443                 synchronized (localSones) {
 444                         return localSones.containsKey(id);
 445                 }
 446         }
 447
 448         /**
 449          * Returns all local Sones.
 450          *
 451          * @return All local Sones
 452          */
 453         public Set<Sone> getLocalSones() {
 454                 synchronized (localSones) {
 455                         return new HashSet<Sone>(localSones.values());
 456                 }
 457         }
 458
 459         /**
 460          * Returns the local Sone with the given ID.
 461          *
 462          * @param id
 463          *            The ID of the Sone to get
 464          * @return The Sone with the given ID
 465          */
 466         public Sone getLocalSone(String id) {
 467                 return getLocalSone(id, true);
 468         }
 469
 470         /**
 471          * Returns the local Sone with the given ID, optionally creating a new Sone.
 472          *
 473          * @param id
 474          *            The ID of the Sone
 475          * @param create
 476          *            {@code true} to create a new Sone if none exists,
 477          *            {@code false} to return null if none exists
 478          * @return The Sone with the given ID, or {@code null}
 479          */
 480         public Sone getLocalSone(String id, boolean create) {
 481                 synchronized (localSones) {
 482                         Sone sone = localSones.get(id);
 483                         if ((sone == null) && create) {
 484                                 sone = new Sone(id);
 485                                 localSones.put(id, sone);
 486                                 setSoneStatus(sone, SoneStatus.unknown);
 487                         }
 488                         return sone;
 489                 }
 490         }
 491
 492         /**
 493          * Returns all remote Sones.
 494          *
 495          * @return All remote Sones
 496          */
 497         public Set<Sone> getRemoteSones() {
 498                 synchronized (remoteSones) {
 499                         return new HashSet<Sone>(remoteSones.values());
 500                 }
 501         }
 502
 503         /**
 504          * Returns the remote Sone with the given ID.
 505          *
 506          * @param id
 507          *            The ID of the remote Sone to get
 508          * @return The Sone with the given ID
 509          */
 510         public Sone getRemoteSone(String id) {
 511                 return getRemoteSone(id, true);
 512         }
 513
 514         /**
 515          * Returns the remote Sone with the given ID.
 516          *
 517          * @param id
 518          *            The ID of the remote Sone to get
 519          * @param create
 520          *            {@code true} to always create a Sone, {@code false} to return
 521          *            {@code null} if no Sone with the given ID exists
 522          * @return The Sone with the given ID
 523          */
 524         public Sone getRemoteSone(String id, boolean create) {
 525                 synchronized (remoteSones) {
 526                         Sone sone = remoteSones.get(id);
 527                         if ((sone == null) && create) {
 528                                 sone = new Sone(id);
 529                                 remoteSones.put(id, sone);
 530                                 setSoneStatus(sone, SoneStatus.unknown);
 531                         }
 532                         return sone;
 533                 }
 534         }
 535
 536         /**
 537          * Returns whether the given Sone is a remote Sone.
 538          *
 539          * @param sone
 540          *            The Sone to check
 541          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 542          *         otherwise
 543          */
 544         public boolean isRemoteSone(Sone sone) {
 545                 synchronized (remoteSones) {
 546                         return remoteSones.containsKey(sone.getId());
 547                 }
 548         }
 549
 550         /**
 551          * Returns whether the Sone with the given ID is a remote Sone.
 552          *
 553          * @param id
 554          *            The ID of the Sone to check
 555          * @return {@code true} if the Sone with the given ID is a remote Sone,
 556          *         {@code false} otherwise
 557          */
 558         public boolean isRemoteSone(String id) {
 559                 synchronized (remoteSones) {
 560                         return remoteSones.containsKey(id);
 561                 }
 562         }
 563
 564         /**
 565          * Returns whether the Sone with the given ID is a new Sone.
 566          *
 567          * @param soneId
 568          *            The ID of the sone to check for
 569          * @return {@code true} if the given Sone is new, false otherwise
 570          */
 571         public boolean isNewSone(String soneId) {
 572                 synchronized (newSones) {
 573                         return !knownSones.contains(soneId) && newSones.contains(soneId);
 574                 }
 575         }
 576
 577         /**
 578          * Returns whether the given Sone has been modified.
 579          *
 580          * @param sone
 581          *            The Sone to check for modifications
 582          * @return {@code true} if a modification has been detected in the Sone,
 583          *         {@code false} otherwise
 584          */
 585         public boolean isModifiedSone(Sone sone) {
 586                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 587         }
 588
 589         /**
 590          * Returns whether the target Sone is trusted by the origin Sone.
 591          *
 592          * @param origin
 593          *            The origin Sone
 594          * @param target
 595          *            The target Sone
 596          * @return {@code true} if the target Sone is trusted by the origin Sone
 597          */
 598         public boolean isSoneTrusted(Sone origin, Sone target) {
 599                 Validation.begin().isNotNull("Origin", origin).isNotNull("Target", target).check().isInstanceOf("Origin’s OwnIdentity", origin.getIdentity(), OwnIdentity.class).check();
 600                 return trustedIdentities.containsKey(origin.getIdentity()) && trustedIdentities.get(origin.getIdentity()).contains(target.getIdentity());
 601         }
 602
 603         /**
 604          * Returns the post with the given ID.
 605          *
 606          * @param postId
 607          *            The ID of the post to get
 608          * @return The post with the given ID, or a new post with the given ID
 609          */
 610         public Post getPost(String postId) {
 611                 return getPost(postId, true);
 612         }
 613
 614         /**
 615          * Returns the post with the given ID, optionally creating a new post.
 616          *
 617          * @param postId
 618          *            The ID of the post to get
 619          * @param create
 620          *            {@code true} it create a new post if no post with the given ID
 621          *            exists, {@code false} to return {@code null}
 622          * @return The post, or {@code null} if there is no such post
 623          */
 624         @Override
 625         public Post getPost(String postId, boolean create) {
 626                 synchronized (posts) {
 627                         Post post = posts.get(postId);
 628                         if ((post == null) && create) {
 629                                 post = new Post(postId);
 630                                 posts.put(postId, post);
 631                         }
 632                         return post;
 633                 }
 634         }
 635
 636         /**
 637          * Returns whether the given post ID is new.
 638          *
 639          * @param postId
 640          *            The post ID
 641          * @return {@code true} if the post is considered to be new, {@code false}
 642          *         otherwise
 643          */
 644         public boolean isNewPost(String postId) {
 645                 synchronized (newPosts) {
 646                         return !knownPosts.contains(postId) && newPosts.contains(postId);
 647                 }
 648         }
 649
 650         /**
 651          * Returns all posts that have the given Sone as recipient.
 652          *
 653          * @see Post#getRecipient()
 654          * @param recipient
 655          *            The recipient of the posts
 656          * @return All posts that have the given Sone as recipient
 657          */
 658         public Set<Post> getDirectedPosts(Sone recipient) {
 659                 Validation.begin().isNotNull("Recipient", recipient).check();
 660                 Set<Post> directedPosts = new HashSet<Post>();
 661                 synchronized (posts) {
 662                         for (Post post : posts.values()) {
 663                                 if (recipient.equals(post.getRecipient())) {
 664                                         directedPosts.add(post);
 665                                 }
 666                         }
 667                 }
 668                 return directedPosts;
 669         }
 670
 671         /**
 672          * Returns the reply with the given ID. If there is no reply with the given
 673          * ID yet, a new one is created.
 674          *
 675          * @param replyId
 676          *            The ID of the reply to get
 677          * @return The reply
 678          */
 679         public Reply getReply(String replyId) {
 680                 return getReply(replyId, true);
 681         }
 682
 683         /**
 684          * Returns the reply with the given ID. If there is no reply with the given
 685          * ID yet, a new one is created, unless {@code create} is false in which
 686          * case {@code null} is returned.
 687          *
 688          * @param replyId
 689          *            The ID of the reply to get
 690          * @param create
 691          *            {@code true} to always return a {@link Reply}, {@code false}
 692          *            to return {@code null} if no reply can be found
 693          * @return The reply, or {@code null} if there is no such reply
 694          */
 695         public Reply getReply(String replyId, boolean create) {
 696                 synchronized (replies) {
 697                         Reply reply = replies.get(replyId);
 698                         if (create && (reply == null)) {
 699                                 reply = new Reply(replyId);
 700                                 replies.put(replyId, reply);
 701                         }
 702                         return reply;
 703                 }
 704         }
 705
 706         /**
 707          * Returns all replies for the given post, order ascending by time.
 708          *
 709          * @param post
 710          *            The post to get all replies for
 711          * @return All replies for the given post
 712          */
 713         public List<Reply> getReplies(Post post) {
 714                 Set<Sone> sones = getSones();
 715                 List<Reply> replies = new ArrayList<Reply>();
 716                 for (Sone sone : sones) {
 717                         for (Reply reply : sone.getReplies()) {
 718                                 if (reply.getPost().equals(post)) {
 719                                         replies.add(reply);
 720                                 }
 721                         }
 722                 }
 723                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 724                 return replies;
 725         }
 726
 727         /**
 728          * Returns whether the reply with the given ID is new.
 729          *
 730          * @param replyId
 731          *            The ID of the reply to check
 732          * @return {@code true} if the reply is considered to be new, {@code false}
 733          *         otherwise
 734          */
 735         public boolean isNewReply(String replyId) {
 736                 synchronized (newReplies) {
 737                         return !knownReplies.contains(replyId) && newReplies.contains(replyId);
 738                 }
 739         }
 740
 741         /**
 742          * Returns all Sones that have liked the given post.
 743          *
 744          * @param post
 745          *            The post to get the liking Sones for
 746          * @return The Sones that like the given post
 747          */
 748         public Set<Sone> getLikes(Post post) {
 749                 Set<Sone> sones = new HashSet<Sone>();
 750                 for (Sone sone : getSones()) {
 751                         if (sone.getLikedPostIds().contains(post.getId())) {
 752                                 sones.add(sone);
 753                         }
 754                 }
 755                 return sones;
 756         }
 757
 758         /**
 759          * Returns all Sones that have liked the given reply.
 760          *
 761          * @param reply
 762          *            The reply to get the liking Sones for
 763          * @return The Sones that like the given reply
 764          */
 765         public Set<Sone> getLikes(Reply reply) {
 766                 Set<Sone> sones = new HashSet<Sone>();
 767                 for (Sone sone : getSones()) {
 768                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 769                                 sones.add(sone);
 770                         }
 771                 }
 772                 return sones;
 773         }
 774
 775         /**
 776          * Returns whether the given post is bookmarked.
 777          *
 778          * @param post
 779          *            The post to check
 780          * @return {@code true} if the given post is bookmarked, {@code false}
 781          *         otherwise
 782          */
 783         public boolean isBookmarked(Post post) {
 784                 return isPostBookmarked(post.getId());
 785         }
 786
 787         /**
 788          * Returns whether the post with the given ID is bookmarked.
 789          *
 790          * @param id
 791          *            The ID of the post to check
 792          * @return {@code true} if the post with the given ID is bookmarked,
 793          *         {@code false} otherwise
 794          */
 795         public boolean isPostBookmarked(String id) {
 796                 synchronized (bookmarkedPosts) {
 797                         return bookmarkedPosts.contains(id);
 798                 }
 799         }
 800
 801         /**
 802          * Returns all currently known bookmarked posts.
 803          *
 804          * @return All bookmarked posts
 805          */
 806         public Set<Post> getBookmarkedPosts() {
 807                 Set<Post> posts = new HashSet<Post>();
 808                 synchronized (bookmarkedPosts) {
 809                         for (String bookmarkedPostId : bookmarkedPosts) {
 810                                 Post post = getPost(bookmarkedPostId, false);
 811                                 if (post != null) {
 812                                         posts.add(post);
 813                                 }
 814                         }
 815                 }
 816                 return posts;
 817         }
 818
 819         /**
 820          * Returns the album with the given ID, creating a new album if no album
 821          * with the given ID can be found.
 822          *
 823          * @param albumId
 824          *            The ID of the album
 825          * @return The album with the given ID
 826          */
 827         public Album getAlbum(String albumId) {
 828                 return getAlbum(albumId, true);
 829         }
 830
 831         /**
 832          * Returns the album with the given ID, optionally creating a new album if
 833          * an album with the given ID can not be found.
 834          *
 835          * @param albumId
 836          *            The ID of the album
 837          * @param create
 838          *            {@code true} to create a new album if none exists for the
 839          *            given ID
 840          * @return The album with the given ID, or {@code null} if no album with the
 841          *         given ID exists and {@code create} is {@code false}
 842          */
 843         public Album getAlbum(String albumId, boolean create) {
 844                 synchronized (albums) {
 845                         Album album = albums.get(albumId);
 846                         if (create && (album == null)) {
 847                                 album = new Album(albumId);
 848                                 albums.put(albumId, album);
 849                         }
 850                         return album;
 851                 }
 852         }
 853
 854         /**
 855          * Returns the image with the given ID, creating it if necessary.
 856          *
 857          * @param imageId
 858          *            The ID of the image
 859          * @return The image with the given ID
 860          */
 861         public Image getImage(String imageId) {
 862                 return getImage(imageId, true);
 863         }
 864
 865         /**
 866          * Returns the image with the given ID, optionally creating it if it does
 867          * not exist.
 868          *
 869          * @param imageId
 870          *            The ID of the image
 871          * @param create
 872          *            {@code true} to create an image if none exists with the given
 873          *            ID
 874          * @return The image with the given ID, or {@code null} if none exists and
 875          *         none was created
 876          */
 877         public Image getImage(String imageId, boolean create) {
 878                 synchronized (images) {
 879                         Image image = images.get(imageId);
 880                         if (create && (image == null)) {
 881                                 image = new Image(imageId);
 882                                 images.put(imageId, image);
 883                         }
 884                         return image;
 885                 }
 886         }
 887
 888         /**
 889          * Returns the temporary image with the given ID.
 890          *
 891          * @param imageId
 892          *            The ID of the temporary image
 893          * @return The temporary image, or {@code null} if there is no temporary
 894          *         image with the given ID
 895          */
 896         public TemporaryImage getTemporaryImage(String imageId) {
 897                 synchronized (temporaryImages) {
 898                         return temporaryImages.get(imageId);
 899                 }
 900         }
 901
 902         //
 903         // ACTIONS
 904         //
 905
 906         /**
 907          * Locks the given Sone. A locked Sone will not be inserted by
 908          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 909          * again.
 910          *
 911          * @param sone
 912          *            The sone to lock
 913          */
 914         public void lockSone(Sone sone) {
 915                 synchronized (lockedSones) {
 916                         if (lockedSones.add(sone)) {
 917                                 coreListenerManager.fireSoneLocked(sone);
 918                         }
 919                 }
 920         }
 921
 922         /**
 923          * Unlocks the given Sone.
 924          *
 925          * @see #lockSone(Sone)
 926          * @param sone
 927          *            The sone to unlock
 928          */
 929         public void unlockSone(Sone sone) {
 930                 synchronized (lockedSones) {
 931                         if (lockedSones.remove(sone)) {
 932                                 coreListenerManager.fireSoneUnlocked(sone);
 933                         }
 934                 }
 935         }
 936
 937         /**
 938          * Adds a local Sone from the given ID which has to be the ID of an own
 939          * identity.
 940          *
 941          * @param id
 942          *            The ID of an own identity to add a Sone for
 943          * @return The added (or already existing) Sone
 944          */
 945         public Sone addLocalSone(String id) {
 946                 synchronized (localSones) {
 947                         if (localSones.containsKey(id)) {
 948                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 949                                 return localSones.get(id);
 950                         }
 951                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 952                         if (ownIdentity == null) {
 953                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 954                                 return null;
 955                         }
 956                         return addLocalSone(ownIdentity);
 957                 }
 958         }
 959
 960         /**
 961          * Adds a local Sone from the given own identity.
 962          *
 963          * @param ownIdentity
 964          *            The own identity to create a Sone from
 965          * @return The added (or already existing) Sone
 966          */
 967         public Sone addLocalSone(OwnIdentity ownIdentity) {
 968                 if (ownIdentity == null) {
 969                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 970                         return null;
 971                 }
 972                 synchronized (localSones) {
 973                         final Sone sone;
 974                         try {
 975                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 976                         } catch (MalformedURLException mue1) {
 977                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 978                                 return null;
 979                         }
 980                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 981                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 982                         /* TODO - load posts ’n stuff */
 983                         localSones.put(ownIdentity.getId(), sone);
 984                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 985                         soneInserter.addSoneInsertListener(this);
 986                         soneInserters.put(sone, soneInserter);
 987                         setSoneStatus(sone, SoneStatus.idle);
 988                         loadSone(sone);
 989                         soneInserter.start();
 990                         return sone;
 991                 }
 992         }
 993
 994         /**
 995          * Creates a new Sone for the given own identity.
 996          *
 997          * @param ownIdentity
 998          *            The own identity to create a Sone for
 999          * @return The created Sone
1000          */
1001         public Sone createSone(OwnIdentity ownIdentity) {
1002                 try {
1003                         ownIdentity.addContext("Sone");
1004                 } catch (WebOfTrustException wote1) {
1005                         logger.log(Level.SEVERE, "Could not add “Sone” context to own identity: " + ownIdentity, wote1);
1006                         return null;
1007                 }
1008                 Sone sone = addLocalSone(ownIdentity);
1009                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
1010                 sone.addFriend("nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI");
1011                 touchConfiguration();
1012                 return sone;
1013         }
1014
1015         /**
1016          * Adds the Sone of the given identity.
1017          *
1018          * @param identity
1019          *            The identity whose Sone to add
1020          * @return The added or already existing Sone
1021          */
1022         public Sone addRemoteSone(Identity identity) {
1023                 if (identity == null) {
1024                         logger.log(Level.WARNING, "Given Identity is null!");
1025                         return null;
1026                 }
1027                 synchronized (remoteSones) {
1028                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
1029                         boolean newSone = sone.getRequestUri() == null;
1030                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
1031                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
1032                         if (newSone) {
1033                                 synchronized (newSones) {
1034                                         newSone = !knownSones.contains(sone.getId());
1035                                         if (newSone) {
1036                                                 newSones.add(sone.getId());
1037                                         }
1038                                 }
1039                                 if (newSone) {
1040                                         coreListenerManager.fireNewSoneFound(sone);
1041                                         for (Sone localSone : getLocalSones()) {
1042                                                 if (localSone.getOptions().getBooleanOption("AutoFollow").get()) {
1043                                                         localSone.addFriend(sone.getId());
1044                                                         touchConfiguration();
1045                                                 }
1046                                         }
1047                                 }
1048                         }
1049                         remoteSones.put(identity.getId(), sone);
1050                         soneDownloader.addSone(sone);
1051                         setSoneStatus(sone, SoneStatus.unknown);
1052                         soneDownloaders.execute(new Runnable() {
1053
1054                                 @Override
1055                                 @SuppressWarnings("synthetic-access")
1056                                 public void run() {
1057                                         soneDownloader.fetchSone(sone, sone.getRequestUri());
1058                                 }
1059
1060                         });
1061                         return sone;
1062                 }
1063         }
1064
1065         /**
1066          * Retrieves the trust relationship from the origin to the target. If the
1067          * trust relationship can not be retrieved, {@code null} is returned.
1068          *
1069          * @see Identity#getTrust(OwnIdentity)
1070          * @param origin
1071          *            The origin of the trust tree
1072          * @param target
1073          *            The target of the trust
1074          * @return The trust relationship
1075          */
1076         public Trust getTrust(Sone origin, Sone target) {
1077                 if (!isLocalSone(origin)) {
1078                         logger.log(Level.WARNING, "Tried to get trust from remote Sone: %s", origin);
1079                         return null;
1080                 }
1081                 return target.getIdentity().getTrust((OwnIdentity) origin.getIdentity());
1082         }
1083
1084         /**
1085          * Sets the trust value of the given origin Sone for the target Sone.
1086          *
1087          * @param origin
1088          *            The origin Sone
1089          * @param target
1090          *            The target Sone
1091          * @param trustValue
1092          *            The trust value (from {@code -100} to {@code 100})
1093          */
1094         public void setTrust(Sone origin, Sone target, int trustValue) {
1095                 Validation.begin().isNotNull("Trust Origin", origin).check().isInstanceOf("Trust Origin", origin.getIdentity(), OwnIdentity.class).isNotNull("Trust Target", target).isLessOrEqual("Trust Value", trustValue, 100).isGreaterOrEqual("Trust Value", trustValue, -100).check();
1096                 try {
1097                         ((OwnIdentity) origin.getIdentity()).setTrust(target.getIdentity(), trustValue, preferences.getTrustComment());
1098                 } catch (WebOfTrustException wote1) {
1099                         logger.log(Level.WARNING, "Could not set trust for Sone: " + target, wote1);
1100                 }
1101         }
1102
1103         /**
1104          * Removes any trust assignment for the given target Sone.
1105          *
1106          * @param origin
1107          *            The trust origin
1108          * @param target
1109          *            The trust target
1110          */
1111         public void removeTrust(Sone origin, Sone target) {
1112                 Validation.begin().isNotNull("Trust Origin", origin).isNotNull("Trust Target", target).check().isInstanceOf("Trust Origin Identity", origin.getIdentity(), OwnIdentity.class).check();
1113                 try {
1114                         ((OwnIdentity) origin.getIdentity()).removeTrust(target.getIdentity());
1115                 } catch (WebOfTrustException wote1) {
1116                         logger.log(Level.WARNING, "Could not remove trust for Sone: " + target, wote1);
1117                 }
1118         }
1119
1120         /**
1121          * Assigns the configured positive trust value for the given target.
1122          *
1123          * @param origin
1124          *            The trust origin
1125          * @param target
1126          *            The trust target
1127          */
1128         public void trustSone(Sone origin, Sone target) {
1129                 setTrust(origin, target, preferences.getPositiveTrust());
1130         }
1131
1132         /**
1133          * Assigns the configured negative trust value for the given target.
1134          *
1135          * @param origin
1136          *            The trust origin
1137          * @param target
1138          *            The trust target
1139          */
1140         public void distrustSone(Sone origin, Sone target) {
1141                 setTrust(origin, target, preferences.getNegativeTrust());
1142         }
1143
1144         /**
1145          * Removes the trust assignment for the given target.
1146          *
1147          * @param origin
1148          *            The trust origin
1149          * @param target
1150          *            The trust target
1151          */
1152         public void untrustSone(Sone origin, Sone target) {
1153                 removeTrust(origin, target);
1154         }
1155
1156         /**
1157          * Updates the stored Sone with the given Sone.
1158          *
1159          * @param sone
1160          *            The updated Sone
1161          */
1162         public void updateSone(Sone sone) {
1163                 updateSone(sone, false);
1164         }
1165
1166         /**
1167          * Updates the stored Sone with the given Sone. If {@code soneRescueMode} is
1168          * {@code true}, an older Sone than the current Sone can be given to restore
1169          * an old state.
1170          *
1171          * @param sone
1172          *            The Sone to update
1173          * @param soneRescueMode
1174          *            {@code true} if the stored Sone should be updated regardless
1175          *            of the age of the given Sone
1176          */
1177         public void updateSone(Sone sone, boolean soneRescueMode) {
1178                 if (hasSone(sone.getId())) {
1179                         Sone storedSone = getSone(sone.getId());
1180                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
1181                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
1182                                 return;
1183                         }
1184                         synchronized (posts) {
1185                                 if (!soneRescueMode) {
1186                                         for (Post post : storedSone.getPosts()) {
1187                                                 posts.remove(post.getId());
1188                                                 if (!sone.getPosts().contains(post)) {
1189                                                         coreListenerManager.firePostRemoved(post);
1190                                                 }
1191                                         }
1192                                 }
1193                                 List<Post> storedPosts = storedSone.getPosts();
1194                                 synchronized (newPosts) {
1195                                         for (Post post : sone.getPosts()) {
1196                                                 post.setSone(storedSone);
1197                                                 if (!storedPosts.contains(post) && !knownPosts.contains(post.getId())) {
1198                                                         newPosts.add(post.getId());
1199                                                         coreListenerManager.fireNewPostFound(post);
1200                                                 }
1201                                                 posts.put(post.getId(), post);
1202                                         }
1203                                 }
1204                         }
1205                         synchronized (replies) {
1206                                 if (!soneRescueMode) {
1207                                         for (Reply reply : storedSone.getReplies()) {
1208                                                 replies.remove(reply.getId());
1209                                                 if (!sone.getReplies().contains(reply)) {
1210                                                         coreListenerManager.fireReplyRemoved(reply);
1211                                                 }
1212                                         }
1213                                 }
1214                                 Set<Reply> storedReplies = storedSone.getReplies();
1215                                 synchronized (newReplies) {
1216                                         for (Reply reply : sone.getReplies()) {
1217                                                 reply.setSone(storedSone);
1218                                                 if (!storedReplies.contains(reply) && !knownReplies.contains(reply.getId())) {
1219                                                         newReplies.add(reply.getId());
1220                                                         coreListenerManager.fireNewReplyFound(reply);
1221                                                 }
1222                                                 replies.put(reply.getId(), reply);
1223                                         }
1224                                 }
1225                         }
1226                         synchronized (storedSone) {
1227                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
1228                                         storedSone.setTime(sone.getTime());
1229                                 }
1230                                 storedSone.setClient(sone.getClient());
1231                                 storedSone.setProfile(sone.getProfile());
1232                                 if (soneRescueMode) {
1233                                         for (Post post : sone.getPosts()) {
1234                                                 storedSone.addPost(post);
1235                                         }
1236                                         for (Reply reply : sone.getReplies()) {
1237                                                 storedSone.addReply(reply);
1238                                         }
1239                                         for (String likedPostId : sone.getLikedPostIds()) {
1240                                                 storedSone.addLikedPostId(likedPostId);
1241                                         }
1242                                         for (String likedReplyId : sone.getLikedReplyIds()) {
1243                                                 storedSone.addLikedReplyId(likedReplyId);
1244                                         }
1245                                 } else {
1246                                         storedSone.setPosts(sone.getPosts());
1247                                         storedSone.setReplies(sone.getReplies());
1248                                         storedSone.setLikePostIds(sone.getLikedPostIds());
1249                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
1250                                         storedSone.setAlbums(sone.getAlbums());
1251                                 }
1252                                 storedSone.setLatestEdition(sone.getLatestEdition());
1253                         }
1254                 }
1255         }
1256
1257         /**
1258          * Deletes the given Sone. This will remove the Sone from the
1259          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
1260          * and remove the context from its identity.
1261          *
1262          * @param sone
1263          *            The Sone to delete
1264          */
1265         public void deleteSone(Sone sone) {
1266                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1267                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
1268                         return;
1269                 }
1270                 synchronized (localSones) {
1271                         if (!localSones.containsKey(sone.getId())) {
1272                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
1273                                 return;
1274                         }
1275                         localSones.remove(sone.getId());
1276                         SoneInserter soneInserter = soneInserters.remove(sone);
1277                         soneInserter.removeSoneInsertListener(this);
1278                         soneInserter.stop();
1279                 }
1280                 try {
1281                         ((OwnIdentity) sone.getIdentity()).removeContext("Sone");
1282                         ((OwnIdentity) sone.getIdentity()).removeProperty("Sone.LatestEdition");
1283                 } catch (WebOfTrustException wote1) {
1284                         logger.log(Level.WARNING, "Could not remove context and properties from Sone: " + sone, wote1);
1285                 }
1286                 try {
1287                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
1288                 } catch (ConfigurationException ce1) {
1289                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
1290                 }
1291         }
1292
1293         /**
1294          * Marks the given Sone as known. If the Sone was {@link #isNewPost(String)
1295          * new} before, a {@link CoreListener#markSoneKnown(Sone)} event is fired.
1296          *
1297          * @param sone
1298          *            The Sone to mark as known
1299          */
1300         public void markSoneKnown(Sone sone) {
1301                 synchronized (newSones) {
1302                         if (newSones.remove(sone.getId())) {
1303                                 knownSones.add(sone.getId());
1304                                 coreListenerManager.fireMarkSoneKnown(sone);
1305                                 touchConfiguration();
1306                         }
1307                 }
1308         }
1309
1310         /**
1311          * Loads and updates the given Sone from the configuration. If any error is
1312          * encountered, loading is aborted and the given Sone is not changed.
1313          *
1314          * @param sone
1315          *            The Sone to load and update
1316          */
1317         public void loadSone(Sone sone) {
1318                 if (!isLocalSone(sone)) {
1319                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
1320                         return;
1321                 }
1322
1323                 /* initialize options. */
1324                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
1325                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
1326
1327                 /* load Sone. */
1328                 String sonePrefix = "Sone/" + sone.getId();
1329                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1330                 if (soneTime == null) {
1331                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1332                         return;
1333                 }
1334                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1335
1336                 /* load profile. */
1337                 Profile profile = new Profile();
1338                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1339                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1340                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1341                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1342                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1343                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1344
1345                 /* load profile fields. */
1346                 while (true) {
1347                         String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
1348                         String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
1349                         if (fieldName == null) {
1350                                 break;
1351                         }
1352                         String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
1353                         profile.addField(fieldName).setValue(fieldValue);
1354                 }
1355
1356                 /* load posts. */
1357                 Set<Post> posts = new HashSet<Post>();
1358                 while (true) {
1359                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1360                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1361                         if (postId == null) {
1362                                 break;
1363                         }
1364                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1365                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1366                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1367                         if ((postTime == 0) || (postText == null)) {
1368                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1369                                 return;
1370                         }
1371                         Post post = getPost(postId).setSone(sone).setTime(postTime).setText(postText);
1372                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1373                                 post.setRecipient(getSone(postRecipientId));
1374                         }
1375                         posts.add(post);
1376                 }
1377
1378                 /* load replies. */
1379                 Set<Reply> replies = new HashSet<Reply>();
1380                 while (true) {
1381                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1382                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1383                         if (replyId == null) {
1384                                 break;
1385                         }
1386                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1387                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1388                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1389                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1390                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1391                                 return;
1392                         }
1393                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1394                 }
1395
1396                 /* load post likes. */
1397                 Set<String> likedPostIds = new HashSet<String>();
1398                 while (true) {
1399                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1400                         if (likedPostId == null) {
1401                                 break;
1402                         }
1403                         likedPostIds.add(likedPostId);
1404                 }
1405
1406                 /* load reply likes. */
1407                 Set<String> likedReplyIds = new HashSet<String>();
1408                 while (true) {
1409                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1410                         if (likedReplyId == null) {
1411                                 break;
1412                         }
1413                         likedReplyIds.add(likedReplyId);
1414                 }
1415
1416                 /* load friends. */
1417                 Set<String> friends = new HashSet<String>();
1418                 while (true) {
1419                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1420                         if (friendId == null) {
1421                                 break;
1422                         }
1423                         friends.add(friendId);
1424                 }
1425
1426                 /* load albums. */
1427                 List<Album> topLevelAlbums = new ArrayList<Album>();
1428                 int albumCounter = 0;
1429                 while (true) {
1430                         String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1431                         String albumId = configuration.getStringValue(albumPrefix + "/ID").getValue(null);
1432                         if (albumId == null) {
1433                                 break;
1434                         }
1435                         String albumTitle = configuration.getStringValue(albumPrefix + "/Title").getValue(null);
1436                         String albumDescription = configuration.getStringValue(albumPrefix + "/Description").getValue(null);
1437                         String albumParentId = configuration.getStringValue(albumPrefix + "/Parent").getValue(null);
1438                         String albumImageId = configuration.getStringValue(albumPrefix + "/AlbumImage").getValue(null);
1439                         if ((albumTitle == null) || (albumDescription == null)) {
1440                                 logger.log(Level.WARNING, "Invalid album found, aborting load!");
1441                                 return;
1442                         }
1443                         Album album = getAlbum(albumId).setSone(sone).setTitle(albumTitle).setDescription(albumDescription).setAlbumImage(albumImageId);
1444                         if (albumParentId != null) {
1445                                 Album parentAlbum = getAlbum(albumParentId, false);
1446                                 if (parentAlbum == null) {
1447                                         logger.log(Level.WARNING, "Invalid parent album ID: " + albumParentId);
1448                                         return;
1449                                 }
1450                                 parentAlbum.addAlbum(album);
1451                         } else {
1452                                 topLevelAlbums.add(album);
1453                         }
1454                 }
1455
1456                 /* load images. */
1457                 int imageCounter = 0;
1458                 while (true) {
1459                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1460                         String imageId = configuration.getStringValue(imagePrefix + "/ID").getValue(null);
1461                         if (imageId == null) {
1462                                 break;
1463                         }
1464                         String albumId = configuration.getStringValue(imagePrefix + "/Album").getValue(null);
1465                         String key = configuration.getStringValue(imagePrefix + "/Key").getValue(null);
1466                         String title = configuration.getStringValue(imagePrefix + "/Title").getValue(null);
1467                         String description = configuration.getStringValue(imagePrefix + "/Description").getValue(null);
1468                         Long creationTime = configuration.getLongValue(imagePrefix + "/CreationTime").getValue(null);
1469                         Integer width = configuration.getIntValue(imagePrefix + "/Width").getValue(null);
1470                         Integer height = configuration.getIntValue(imagePrefix + "/Height").getValue(null);
1471                         if ((albumId == null) || (key == null) || (title == null) || (description == null) || (creationTime == null) || (width == null) || (height == null)) {
1472                                 logger.log(Level.WARNING, "Invalid image found, aborting load!");
1473                                 return;
1474                         }
1475                         Album album = getAlbum(albumId, false);
1476                         if (album == null) {
1477                                 logger.log(Level.WARNING, "Invalid album image encountered, aborting load!");
1478                                 return;
1479                         }
1480                         Image image = getImage(imageId).setSone(sone).setCreationTime(creationTime).setKey(key);
1481                         image.setTitle(title).setDescription(description).setWidth(width).setHeight(height);
1482                         album.addImage(image);
1483                 }
1484
1485                 /* load options. */
1486                 sone.getOptions().getBooleanOption("AutoFollow").set(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
1487                 sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").set(configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").getValue(null));
1488
1489                 /* if we’re still here, Sone was loaded successfully. */
1490                 synchronized (sone) {
1491                         sone.setTime(soneTime);
1492                         sone.setProfile(profile);
1493                         sone.setPosts(posts);
1494                         sone.setReplies(replies);
1495                         sone.setLikePostIds(likedPostIds);
1496                         sone.setLikeReplyIds(likedReplyIds);
1497                         sone.setFriends(friends);
1498                         sone.setAlbums(topLevelAlbums);
1499                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1500                 }
1501                 synchronized (newSones) {
1502                         for (String friend : friends) {
1503                                 knownSones.add(friend);
1504                         }
1505                 }
1506                 synchronized (newPosts) {
1507                         for (Post post : posts) {
1508                                 knownPosts.add(post.getId());
1509                         }
1510                 }
1511                 synchronized (newReplies) {
1512                         for (Reply reply : replies) {
1513                                 knownReplies.add(reply.getId());
1514                         }
1515                 }
1516         }
1517
1518         /**
1519          * Creates a new post.
1520          *
1521          * @param sone
1522          *            The Sone that creates the post
1523          * @param text
1524          *            The text of the post
1525          * @return The created post
1526          */
1527         public Post createPost(Sone sone, String text) {
1528                 return createPost(sone, System.currentTimeMillis(), text);
1529         }
1530
1531         /**
1532          * Creates a new post.
1533          *
1534          * @param sone
1535          *            The Sone that creates the post
1536          * @param time
1537          *            The time of the post
1538          * @param text
1539          *            The text of the post
1540          * @return The created post
1541          */
1542         public Post createPost(Sone sone, long time, String text) {
1543                 return createPost(sone, null, time, text);
1544         }
1545
1546         /**
1547          * Creates a new post.
1548          *
1549          * @param sone
1550          *            The Sone that creates the post
1551          * @param recipient
1552          *            The recipient Sone, or {@code null} if this post does not have
1553          *            a recipient
1554          * @param text
1555          *            The text of the post
1556          * @return The created post
1557          */
1558         public Post createPost(Sone sone, Sone recipient, String text) {
1559                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1560         }
1561
1562         /**
1563          * Creates a new post.
1564          *
1565          * @param sone
1566          *            The Sone that creates the post
1567          * @param recipient
1568          *            The recipient Sone, or {@code null} if this post does not have
1569          *            a recipient
1570          * @param time
1571          *            The time of the post
1572          * @param text
1573          *            The text of the post
1574          * @return The created post
1575          */
1576         public Post createPost(Sone sone, Sone recipient, long time, String text) {
1577                 if (!isLocalSone(sone)) {
1578                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1579                         return null;
1580                 }
1581                 final Post post = new Post(sone, time, text);
1582                 if (recipient != null) {
1583                         post.setRecipient(recipient);
1584                 }
1585                 synchronized (posts) {
1586                         posts.put(post.getId(), post);
1587                 }
1588                 synchronized (newPosts) {
1589                         newPosts.add(post.getId());
1590                         coreListenerManager.fireNewPostFound(post);
1591                 }
1592                 sone.addPost(post);
1593                 touchConfiguration();
1594                 localElementTicker.registerEvent(System.currentTimeMillis() + 10 * 1000, new Runnable() {
1595
1596                         /**
1597                          * {@inheritDoc}
1598                          */
1599                         @Override
1600                         public void run() {
1601                                 markPostKnown(post);
1602                         }
1603                 }, "Mark " + post + " read.");
1604                 return post;
1605         }
1606
1607         /**
1608          * Deletes the given post.
1609          *
1610          * @param post
1611          *            The post to delete
1612          */
1613         public void deletePost(Post post) {
1614                 if (!isLocalSone(post.getSone())) {
1615                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1616                         return;
1617                 }
1618                 post.getSone().removePost(post);
1619                 synchronized (posts) {
1620                         posts.remove(post.getId());
1621                 }
1622                 coreListenerManager.firePostRemoved(post);
1623                 synchronized (newPosts) {
1624                         markPostKnown(post);
1625                         knownPosts.remove(post.getId());
1626                 }
1627                 touchConfiguration();
1628         }
1629
1630         /**
1631          * Marks the given post as known, if it is currently a new post (according
1632          * to {@link #isNewPost(String)}).
1633          *
1634          * @param post
1635          *            The post to mark as known
1636          */
1637         public void markPostKnown(Post post) {
1638                 synchronized (newPosts) {
1639                         if (newPosts.remove(post.getId())) {
1640                                 knownPosts.add(post.getId());
1641                                 coreListenerManager.fireMarkPostKnown(post);
1642                                 touchConfiguration();
1643                         }
1644                 }
1645         }
1646
1647         /**
1648          * Bookmarks the given post.
1649          *
1650          * @param post
1651          *            The post to bookmark
1652          */
1653         public void bookmark(Post post) {
1654                 bookmarkPost(post.getId());
1655         }
1656
1657         /**
1658          * Bookmarks the post with the given ID.
1659          *
1660          * @param id
1661          *            The ID of the post to bookmark
1662          */
1663         public void bookmarkPost(String id) {
1664                 synchronized (bookmarkedPosts) {
1665                         bookmarkedPosts.add(id);
1666                 }
1667         }
1668
1669         /**
1670          * Removes the given post from the bookmarks.
1671          *
1672          * @param post
1673          *            The post to unbookmark
1674          */
1675         public void unbookmark(Post post) {
1676                 unbookmarkPost(post.getId());
1677         }
1678
1679         /**
1680          * Removes the post with the given ID from the bookmarks.
1681          *
1682          * @param id
1683          *            The ID of the post to unbookmark
1684          */
1685         public void unbookmarkPost(String id) {
1686                 synchronized (bookmarkedPosts) {
1687                         bookmarkedPosts.remove(id);
1688                 }
1689         }
1690
1691         /**
1692          * Creates a new reply.
1693          *
1694          * @param sone
1695          *            The Sone that creates the reply
1696          * @param post
1697          *            The post that this reply refers to
1698          * @param text
1699          *            The text of the reply
1700          * @return The created reply
1701          */
1702         public Reply createReply(Sone sone, Post post, String text) {
1703                 return createReply(sone, post, System.currentTimeMillis(), text);
1704         }
1705
1706         /**
1707          * Creates a new reply.
1708          *
1709          * @param sone
1710          *            The Sone that creates the reply
1711          * @param post
1712          *            The post that this reply refers to
1713          * @param time
1714          *            The time of the reply
1715          * @param text
1716          *            The text of the reply
1717          * @return The created reply
1718          */
1719         public Reply createReply(Sone sone, Post post, long time, String text) {
1720                 if (!isLocalSone(sone)) {
1721                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1722                         return null;
1723                 }
1724                 final Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1725                 synchronized (replies) {
1726                         replies.put(reply.getId(), reply);
1727                 }
1728                 synchronized (newReplies) {
1729                         newReplies.add(reply.getId());
1730                         coreListenerManager.fireNewReplyFound(reply);
1731                 }
1732                 sone.addReply(reply);
1733                 touchConfiguration();
1734                 localElementTicker.registerEvent(System.currentTimeMillis() + 10 * 1000, new Runnable() {
1735
1736                         /**
1737                          * {@inheritDoc}
1738                          */
1739                         @Override
1740                         public void run() {
1741                                 markReplyKnown(reply);
1742                         }
1743                 }, "Mark " + reply + " read.");
1744                 return reply;
1745         }
1746
1747         /**
1748          * Deletes the given reply.
1749          *
1750          * @param reply
1751          *            The reply to delete
1752          */
1753         public void deleteReply(Reply reply) {
1754                 Sone sone = reply.getSone();
1755                 if (!isLocalSone(sone)) {
1756                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1757                         return;
1758                 }
1759                 synchronized (replies) {
1760                         replies.remove(reply.getId());
1761                 }
1762                 synchronized (newReplies) {
1763                         markReplyKnown(reply);
1764                         knownReplies.remove(reply.getId());
1765                 }
1766                 sone.removeReply(reply);
1767                 touchConfiguration();
1768         }
1769
1770         /**
1771          * Marks the given reply as known, if it is currently a new reply (according
1772          * to {@link #isNewReply(String)}).
1773          *
1774          * @param reply
1775          *            The reply to mark as known
1776          */
1777         public void markReplyKnown(Reply reply) {
1778                 synchronized (newReplies) {
1779                         if (newReplies.remove(reply.getId())) {
1780                                 knownReplies.add(reply.getId());
1781                                 coreListenerManager.fireMarkReplyKnown(reply);
1782                                 touchConfiguration();
1783                         }
1784                 }
1785         }
1786
1787         /**
1788          * Creates a new top-level album for the given Sone.
1789          *
1790          * @param sone
1791          *            The Sone to create the album for
1792          * @return The new album
1793          */
1794         public Album createAlbum(Sone sone) {
1795                 return createAlbum(sone, null);
1796         }
1797
1798         /**
1799          * Creates a new album for the given Sone.
1800          *
1801          * @param sone
1802          *            The Sone to create the album for
1803          * @param parent
1804          *            The parent of the album (may be {@code null} to create a
1805          *            top-level album)
1806          * @return The new album
1807          */
1808         public Album createAlbum(Sone sone, Album parent) {
1809                 Album album = new Album();
1810                 synchronized (albums) {
1811                         albums.put(album.getId(), album);
1812                 }
1813                 album.setSone(sone);
1814                 if (parent != null) {
1815                         parent.addAlbum(album);
1816                 } else {
1817                         sone.addAlbum(album);
1818                 }
1819                 return album;
1820         }
1821
1822         /**
1823          * Deletes the given album. The owner of the album has to be a local Sone,
1824          * and the album has to be {@link Album#isEmpty() empty} to be deleted.
1825          *
1826          * @param album
1827          *            The album to remove
1828          */
1829         public void deleteAlbum(Album album) {
1830                 Validation.begin().isNotNull("Album", album).check().is("Local Sone", isLocalSone(album.getSone())).check();
1831                 if (!album.isEmpty()) {
1832                         return;
1833                 }
1834                 if (album.getParent() == null) {
1835                         album.getSone().removeAlbum(album);
1836                 } else {
1837                         album.getParent().removeAlbum(album);
1838                 }
1839                 synchronized (albums) {
1840                         albums.remove(album.getId());
1841                 }
1842                 saveSone(album.getSone());
1843         }
1844
1845         /**
1846          * Creates a new image.
1847          *
1848          * @param sone
1849          *            The Sone creating the image
1850          * @param album
1851          *            The album the image will be inserted into
1852          * @param temporaryImage
1853          *            The temporary image to create the image from
1854          * @return The newly created image
1855          */
1856         public Image createImage(Sone sone, Album album, TemporaryImage temporaryImage) {
1857                 Validation.begin().isNotNull("Sone", sone).isNotNull("Album", album).isNotNull("Temporary Image", temporaryImage).check().is("Local Sone", isLocalSone(sone)).check().isEqual("Owner and Album Owner", sone, album.getSone()).check();
1858                 Image image = new Image(temporaryImage.getId()).setSone(sone).setCreationTime(System.currentTimeMillis());
1859                 album.addImage(image);
1860                 synchronized (images) {
1861                         images.put(image.getId(), image);
1862                 }
1863                 imageInserter.insertImage(temporaryImage, image);
1864                 return image;
1865         }
1866
1867         /**
1868          * Deletes the given image. This method will also delete a matching
1869          * temporary image.
1870          *
1871          * @see #deleteTemporaryImage(TemporaryImage)
1872          * @param image
1873          *            The image to delete
1874          */
1875         public void deleteImage(Image image) {
1876                 Validation.begin().isNotNull("Image", image).check().is("Local Sone", isLocalSone(image.getSone())).check();
1877                 deleteTemporaryImage(image.getId());
1878                 image.getAlbum().removeImage(image);
1879                 synchronized (images) {
1880                         images.remove(image.getId());
1881                 }
1882                 saveSone(image.getSone());
1883         }
1884
1885         /**
1886          * Creates a new temporary image.
1887          *
1888          * @param mimeType
1889          *            The MIME type of the temporary image
1890          * @param imageData
1891          *            The encoded data of the image
1892          * @return The temporary image
1893          */
1894         public TemporaryImage createTemporaryImage(String mimeType, byte[] imageData) {
1895                 TemporaryImage temporaryImage = new TemporaryImage();
1896                 temporaryImage.setMimeType(mimeType).setImageData(imageData);
1897                 synchronized (temporaryImages) {
1898                         temporaryImages.put(temporaryImage.getId(), temporaryImage);
1899                 }
1900                 return temporaryImage;
1901         }
1902
1903         /**
1904          * Deletes the given temporary image.
1905          *
1906          * @param temporaryImage
1907          *            The temporary image to delete
1908          */
1909         public void deleteTemporaryImage(TemporaryImage temporaryImage) {
1910                 Validation.begin().isNotNull("Temporary Image", temporaryImage).check();
1911                 deleteTemporaryImage(temporaryImage.getId());
1912         }
1913
1914         /**
1915          * Deletes the temporary image with the given ID.
1916          *
1917          * @param imageId
1918          *            The ID of the temporary image to delete
1919          */
1920         public void deleteTemporaryImage(String imageId) {
1921                 Validation.begin().isNotNull("Temporary Image ID", imageId).check();
1922                 synchronized (temporaryImages) {
1923                         temporaryImages.remove(imageId);
1924                 }
1925                 Image image = getImage(imageId, false);
1926                 if (image != null) {
1927                         imageInserter.cancelImageInsert(image);
1928                 }
1929         }
1930
1931         /**
1932          * Notifies the core that the configuration, either of the core or of a
1933          * single local Sone, has changed, and that the configuration should be
1934          * saved.
1935          */
1936         public void touchConfiguration() {
1937                 lastConfigurationUpdate = System.currentTimeMillis();
1938         }
1939
1940         //
1941         // SERVICE METHODS
1942         //
1943
1944         /**
1945          * Starts the core.
1946          */
1947         @Override
1948         public void serviceStart() {
1949                 loadConfiguration();
1950                 updateChecker.addUpdateListener(this);
1951                 updateChecker.start();
1952         }
1953
1954         /**
1955          * {@inheritDoc}
1956          */
1957         @Override
1958         public void serviceRun() {
1959                 long lastSaved = System.currentTimeMillis();
1960                 while (!shouldStop()) {
1961                         sleep(1000);
1962                         long now = System.currentTimeMillis();
1963                         if (shouldStop() || ((lastConfigurationUpdate > lastSaved) && ((now - lastConfigurationUpdate) > 5000))) {
1964                                 for (Sone localSone : getLocalSones()) {
1965                                         saveSone(localSone);
1966                                 }
1967                                 saveConfiguration();
1968                                 lastSaved = now;
1969                         }
1970                 }
1971         }
1972
1973         /**
1974          * Stops the core.
1975          */
1976         @Override
1977         public void serviceStop() {
1978                 synchronized (localSones) {
1979                         for (SoneInserter soneInserter : soneInserters.values()) {
1980                                 soneInserter.removeSoneInsertListener(this);
1981                                 soneInserter.stop();
1982                         }
1983                 }
1984                 updateChecker.stop();
1985                 updateChecker.removeUpdateListener(this);
1986                 soneDownloader.stop();
1987         }
1988
1989         //
1990         // PRIVATE METHODS
1991         //
1992
1993         /**
1994          * Saves the given Sone. This will persist all local settings for the given
1995          * Sone, such as the friends list and similar, private options.
1996          *
1997          * @param sone
1998          *            The Sone to save
1999          */
2000         private synchronized void saveSone(Sone sone) {
2001                 if (!isLocalSone(sone)) {
2002                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
2003                         return;
2004                 }
2005                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
2006                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
2007                         return;
2008                 }
2009
2010                 logger.log(Level.INFO, "Saving Sone: %s", sone);
2011                 try {
2012                         ((OwnIdentity) sone.getIdentity()).setProperty("Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
2013
2014                         /* save Sone into configuration. */
2015                         String sonePrefix = "Sone/" + sone.getId();
2016                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
2017                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
2018
2019                         /* save profile. */
2020                         Profile profile = sone.getProfile();
2021                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
2022                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
2023                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
2024                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
2025                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
2026                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
2027
2028                         /* save profile fields. */
2029                         int fieldCounter = 0;
2030                         for (Field profileField : profile.getFields()) {
2031                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
2032                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
2033                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
2034                         }
2035                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
2036
2037                         /* save posts. */
2038                         int postCounter = 0;
2039                         for (Post post : sone.getPosts()) {
2040                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
2041                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
2042                                 configuration.getStringValue(postPrefix + "/Recipient").setValue((post.getRecipient() != null) ? post.getRecipient().getId() : null);
2043                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
2044                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
2045                         }
2046                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
2047
2048                         /* save replies. */
2049                         int replyCounter = 0;
2050                         for (Reply reply : sone.getReplies()) {
2051                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
2052                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
2053                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
2054                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
2055                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
2056                         }
2057                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
2058
2059                         /* save post likes. */
2060                         int postLikeCounter = 0;
2061                         for (String postId : sone.getLikedPostIds()) {
2062                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
2063                         }
2064                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
2065
2066                         /* save reply likes. */
2067                         int replyLikeCounter = 0;
2068                         for (String replyId : sone.getLikedReplyIds()) {
2069                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
2070                         }
2071                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
2072
2073                         /* save friends. */
2074                         int friendCounter = 0;
2075                         for (String friendId : sone.getFriends()) {
2076                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
2077                         }
2078                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
2079
2080                         /* save albums. first, collect in a flat structure, top-level first. */
2081                         List<Album> albums = Sone.flattenAlbums(sone.getAlbums());
2082
2083                         int albumCounter = 0;
2084                         for (Album album : albums) {
2085                                 String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
2086                                 configuration.getStringValue(albumPrefix + "/ID").setValue(album.getId());
2087                                 configuration.getStringValue(albumPrefix + "/Title").setValue(album.getTitle());
2088                                 configuration.getStringValue(albumPrefix + "/Description").setValue(album.getDescription());
2089                                 configuration.getStringValue(albumPrefix + "/Parent").setValue(album.getParent() == null ? null : album.getParent().getId());
2090                                 configuration.getStringValue(albumPrefix + "/AlbumImage").setValue(album.getAlbumImage() == null ? null : album.getAlbumImage().getId());
2091                         }
2092                         configuration.getStringValue(sonePrefix + "/Albums/" + albumCounter + "/ID").setValue(null);
2093
2094                         /* save images. */
2095                         int imageCounter = 0;
2096                         for (Album album : albums) {
2097                                 for (Image image : album.getImages()) {
2098                                         if (!image.isInserted()) {
2099                                                 continue;
2100                                         }
2101                                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
2102                                         configuration.getStringValue(imagePrefix + "/ID").setValue(image.getId());
2103                                         configuration.getStringValue(imagePrefix + "/Album").setValue(album.getId());
2104                                         configuration.getStringValue(imagePrefix + "/Key").setValue(image.getKey());
2105                                         configuration.getStringValue(imagePrefix + "/Title").setValue(image.getTitle());
2106                                         configuration.getStringValue(imagePrefix + "/Description").setValue(image.getDescription());
2107                                         configuration.getLongValue(imagePrefix + "/CreationTime").setValue(image.getCreationTime());
2108                                         configuration.getIntValue(imagePrefix + "/Width").setValue(image.getWidth());
2109                                         configuration.getIntValue(imagePrefix + "/Height").setValue(image.getHeight());
2110                                 }
2111                         }
2112                         configuration.getStringValue(sonePrefix + "/Images/" + imageCounter + "/ID").setValue(null);
2113
2114                         /* save options. */
2115                         configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().getBooleanOption("AutoFollow").getReal());
2116                         configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").setValue(sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").getReal());
2117
2118                         configuration.save();
2119                         logger.log(Level.INFO, "Sone %s saved.", sone);
2120                 } catch (ConfigurationException ce1) {
2121                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
2122                 } catch (WebOfTrustException wote1) {
2123                         logger.log(Level.WARNING, "Could not set WoT property for Sone: " + sone, wote1);
2124                 }
2125         }
2126
2127         /**
2128          * Saves the current options.
2129          */
2130         private void saveConfiguration() {
2131                 synchronized (configuration) {
2132                         if (storingConfiguration) {
2133                                 logger.log(Level.FINE, "Already storing configuration…");
2134                                 return;
2135                         }
2136                         storingConfiguration = true;
2137                 }
2138
2139                 /* store the options first. */
2140                 try {
2141                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
2142                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
2143                         configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
2144                         configuration.getIntValue("Option/CharactersPerPost").setValue(options.getIntegerOption("CharactersPerPost").getReal());
2145                         configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
2146                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
2147                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
2148                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
2149                         configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
2150                         configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
2151                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
2152                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
2153                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
2154
2155                         /* save known Sones. */
2156                         int soneCounter = 0;
2157                         synchronized (newSones) {
2158                                 for (String knownSoneId : knownSones) {
2159                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
2160                                 }
2161                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
2162                         }
2163
2164                         /* save known posts. */
2165                         int postCounter = 0;
2166                         synchronized (newPosts) {
2167                                 for (String knownPostId : knownPosts) {
2168                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
2169                                 }
2170                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
2171                         }
2172
2173                         /* save known replies. */
2174                         int replyCounter = 0;
2175                         synchronized (newReplies) {
2176                                 for (String knownReplyId : knownReplies) {
2177                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
2178                                 }
2179                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
2180                         }
2181
2182                         /* save bookmarked posts. */
2183                         int bookmarkedPostCounter = 0;
2184                         synchronized (bookmarkedPosts) {
2185                                 for (String bookmarkedPostId : bookmarkedPosts) {
2186                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
2187                                 }
2188                         }
2189                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
2190
2191                         /* now save it. */
2192                         configuration.save();
2193
2194                 } catch (ConfigurationException ce1) {
2195                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
2196                 } finally {
2197                         synchronized (configuration) {
2198                                 storingConfiguration = false;
2199                         }
2200                 }
2201         }
2202
2203         /**
2204          * Loads the configuration.
2205          */
2206         @SuppressWarnings("unchecked")
2207         private void loadConfiguration() {
2208                 /* create options. */
2209                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangeValidator(0, Integer.MAX_VALUE), new OptionWatcher<Integer>() {
2210
2211                         @Override
2212                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
2213                                 SoneInserter.setInsertionDelay(newValue);
2214                         }
2215
2216                 }));
2217                 options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangeValidator(1, Integer.MAX_VALUE)));
2218                 options.addIntegerOption("CharactersPerPost", new DefaultOption<Integer>(200, new OrValidator<Integer>(new IntegerRangeValidator(50, Integer.MAX_VALUE), new EqualityValidator<Integer>(-1))));
2219                 options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
2220                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangeValidator(0, 100)));
2221                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangeValidator(-100, 100)));
2222                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
2223                 options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false, new OptionWatcher<Boolean>() {
2224
2225                         @Override
2226                         @SuppressWarnings("synthetic-access")
2227                         public void optionChanged(Option<Boolean> option, Boolean oldValue, Boolean newValue) {
2228                                 fcpInterface.setActive(newValue);
2229                         }
2230                 }));
2231                 options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, new OptionWatcher<Integer>() {
2232
2233                         @Override
2234                         @SuppressWarnings("synthetic-access")
2235                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
2236                                 fcpInterface.setFullAccessRequired(FullAccessRequired.values()[newValue]);
2237                         }
2238
2239                 }));
2240                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
2241                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
2242                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
2243
2244                 /* read options from configuration. */
2245                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
2246                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
2247                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
2248                 options.getBooleanOption("ClearOnNextRestart").set(null);
2249                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
2250                 if (clearConfiguration) {
2251                         /* stop loading the configuration. */
2252                         return;
2253                 }
2254
2255                 loadConfigurationValue("InsertionDelay");
2256                 loadConfigurationValue("PostsPerPage");
2257                 loadConfigurationValue("CharactersPerPost");
2258                 options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
2259                 loadConfigurationValue("PositiveTrust");
2260                 loadConfigurationValue("NegativeTrust");
2261                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
2262                 options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
2263                 options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
2264                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
2265
2266                 /* load known Sones. */
2267                 int soneCounter = 0;
2268                 while (true) {
2269                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
2270                         if (knownSoneId == null) {
2271                                 break;
2272                         }
2273                         synchronized (newSones) {
2274                                 knownSones.add(knownSoneId);
2275                         }
2276                 }
2277
2278                 /* load known posts. */
2279                 int postCounter = 0;
2280                 while (true) {
2281                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
2282                         if (knownPostId == null) {
2283                                 break;
2284                         }
2285                         synchronized (newPosts) {
2286                                 knownPosts.add(knownPostId);
2287                         }
2288                 }
2289
2290                 /* load known replies. */
2291                 int replyCounter = 0;
2292                 while (true) {
2293                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
2294                         if (knownReplyId == null) {
2295                                 break;
2296                         }
2297                         synchronized (newReplies) {
2298                                 knownReplies.add(knownReplyId);
2299                         }
2300                 }
2301
2302                 /* load bookmarked posts. */
2303                 int bookmarkedPostCounter = 0;
2304                 while (true) {
2305                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
2306                         if (bookmarkedPostId == null) {
2307                                 break;
2308                         }
2309                         synchronized (bookmarkedPosts) {
2310                                 bookmarkedPosts.add(bookmarkedPostId);
2311                         }
2312                 }
2313
2314         }
2315
2316         /**
2317          * Loads an {@link Integer} configuration value for the option with the
2318          * given name, logging validation failures.
2319          *
2320          * @param optionName
2321          *            The name of the option to load
2322          */
2323         private void loadConfigurationValue(String optionName) {
2324                 try {
2325                         options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
2326                 } catch (IllegalArgumentException iae1) {
2327                         logger.log(Level.WARNING, "Invalid value for " + optionName + " in configuration, using default.");
2328                 }
2329         }
2330
2331         /**
2332          * Generate a Sone URI from the given URI and latest edition.
2333          *
2334          * @param uriString
2335          *            The URI to derive the Sone URI from
2336          * @return The derived URI
2337          */
2338         private FreenetURI getSoneUri(String uriString) {
2339                 try {
2340                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
2341                         return uri;
2342                 } catch (MalformedURLException mue1) {
2343                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
2344                         return null;
2345                 }
2346         }
2347
2348         //
2349         // INTERFACE IdentityListener
2350         //
2351
2352         /**
2353          * {@inheritDoc}
2354          */
2355         @Override
2356         public void ownIdentityAdded(OwnIdentity ownIdentity) {
2357                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
2358                 if (ownIdentity.hasContext("Sone")) {
2359                         trustedIdentities.put(ownIdentity, Collections.synchronizedSet(new HashSet<Identity>()));
2360                         addLocalSone(ownIdentity);
2361                 }
2362         }
2363
2364         /**
2365          * {@inheritDoc}
2366          */
2367         @Override
2368         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
2369                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
2370                 trustedIdentities.remove(ownIdentity);
2371         }
2372
2373         /**
2374          * {@inheritDoc}
2375          */
2376         @Override
2377         public void identityAdded(OwnIdentity ownIdentity, Identity identity) {
2378                 logger.log(Level.FINEST, "Adding Identity: " + identity);
2379                 trustedIdentities.get(ownIdentity).add(identity);
2380                 addRemoteSone(identity);
2381         }
2382
2383         /**
2384          * {@inheritDoc}
2385          */
2386         @Override
2387         public void identityUpdated(OwnIdentity ownIdentity, final Identity identity) {
2388                 new Thread(new Runnable() {
2389
2390                         @Override
2391                         @SuppressWarnings("synthetic-access")
2392                         public void run() {
2393                                 Sone sone = getRemoteSone(identity.getId());
2394                                 sone.setIdentity(identity);
2395                                 sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.getLatestEdition()));
2396                                 soneDownloader.addSone(sone);
2397                                 soneDownloader.fetchSone(sone);
2398                         }
2399                 }).start();
2400         }
2401
2402         /**
2403          * {@inheritDoc}
2404          */
2405         @Override
2406         public void identityRemoved(OwnIdentity ownIdentity, Identity identity) {
2407                 trustedIdentities.get(ownIdentity).remove(identity);
2408                 boolean foundIdentity = false;
2409                 for (Entry<OwnIdentity, Set<Identity>> trustedIdentity : trustedIdentities.entrySet()) {
2410                         if (trustedIdentity.getKey().equals(ownIdentity)) {
2411                                 continue;
2412                         }
2413                         if (trustedIdentity.getValue().contains(identity)) {
2414                                 foundIdentity = true;
2415                         }
2416                 }
2417                 if (foundIdentity) {
2418                         /* some local identity still trusts this identity, don’t remove. */
2419                         return;
2420                 }
2421                 Sone sone = getSone(identity.getId(), false);
2422                 if (sone == null) {
2423                         /* TODO - we don’t have the Sone anymore. should this happen? */
2424                         return;
2425                 }
2426                 synchronized (posts) {
2427                         synchronized (newPosts) {
2428                                 for (Post post : sone.getPosts()) {
2429                                         posts.remove(post.getId());
2430                                         newPosts.remove(post.getId());
2431                                         coreListenerManager.firePostRemoved(post);
2432                                 }
2433                         }
2434                 }
2435                 synchronized (replies) {
2436                         synchronized (newReplies) {
2437                                 for (Reply reply : sone.getReplies()) {
2438                                         replies.remove(reply.getId());
2439                                         newReplies.remove(reply.getId());
2440                                         coreListenerManager.fireReplyRemoved(reply);
2441                                 }
2442                         }
2443                 }
2444                 synchronized (remoteSones) {
2445                         remoteSones.remove(identity.getId());
2446                 }
2447                 synchronized (newSones) {
2448                         newSones.remove(identity.getId());
2449                         coreListenerManager.fireSoneRemoved(sone);
2450                 }
2451         }
2452
2453         //
2454         // INTERFACE UpdateListener
2455         //
2456
2457         /**
2458          * {@inheritDoc}
2459          */
2460         @Override
2461         public void updateFound(Version version, long releaseTime, long latestEdition) {
2462                 coreListenerManager.fireUpdateFound(version, releaseTime, latestEdition);
2463         }
2464
2465         //
2466         // INTERFACE ImageInsertListener
2467         //
2468
2469         /**
2470          * {@inheritDoc}
2471          */
2472         @Override
2473         public void insertStarted(Sone sone) {
2474                 coreListenerManager.fireSoneInserting(sone);
2475         }
2476
2477         /**
2478          * {@inheritDoc}
2479          */
2480         @Override
2481         public void insertFinished(Sone sone, long insertDuration) {
2482                 coreListenerManager.fireSoneInserted(sone, insertDuration);
2483         }
2484
2485         /**
2486          * {@inheritDoc}
2487          */
2488         @Override
2489         public void insertAborted(Sone sone, Throwable cause) {
2490                 coreListenerManager.fireSoneInsertAborted(sone, cause);
2491         }
2492
2493         //
2494         // SONEINSERTLISTENER METHODS
2495         //
2496
2497         /**
2498          * {@inheritDoc}
2499          */
2500         @Override
2501         public void imageInsertStarted(Image image) {
2502                 logger.log(Level.WARNING, "Image insert started for " + image);
2503                 coreListenerManager.fireImageInsertStarted(image);
2504         }
2505
2506         /**
2507          * {@inheritDoc}
2508          */
2509         @Override
2510         public void imageInsertAborted(Image image) {
2511                 logger.log(Level.WARNING, "Image insert aborted for " + image);
2512                 coreListenerManager.fireImageInsertAborted(image);
2513         }
2514
2515         /**
2516          * {@inheritDoc}
2517          */
2518         @Override
2519         public void imageInsertFinished(Image image, FreenetURI key) {
2520                 logger.log(Level.WARNING, "Image insert finished for " + image + ": " + key);
2521                 image.setKey(key.toString());
2522                 deleteTemporaryImage(image.getId());
2523                 saveSone(image.getSone());
2524                 coreListenerManager.fireImageInsertFinished(image);
2525         }
2526
2527         /**
2528          * {@inheritDoc}
2529          */
2530         @Override
2531         public void imageInsertFailed(Image image, Throwable cause) {
2532                 logger.log(Level.WARNING, "Image insert failed for " + image, cause);
2533                 coreListenerManager.fireImageInsertFailed(image, cause);
2534         }
2535
2536         /**
2537          * Convenience interface for external classes that want to access the core’s
2538          * configuration.
2539          *
2540          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
2541          */
2542         public static class Preferences {
2543
2544                 /** The wrapped options. */
2545                 private final Options options;
2546
2547                 /**
2548                  * Creates a new preferences object wrapped around the given options.
2549                  *
2550                  * @param options
2551                  *            The options to wrap
2552                  */
2553                 public Preferences(Options options) {
2554                         this.options = options;
2555                 }
2556
2557                 /**
2558                  * Returns the insertion delay.
2559                  *
2560                  * @return The insertion delay
2561                  */
2562                 public int getInsertionDelay() {
2563                         return options.getIntegerOption("InsertionDelay").get();
2564                 }
2565
2566                 /**
2567                  * Validates the given insertion delay.
2568                  *
2569                  * @param insertionDelay
2570                  *            The insertion delay to validate
2571                  * @return {@code true} if the given insertion delay was valid, {@code
2572                  *         false} otherwise
2573                  */
2574                 public boolean validateInsertionDelay(Integer insertionDelay) {
2575                         return options.getIntegerOption("InsertionDelay").validate(insertionDelay);
2576                 }
2577
2578                 /**
2579                  * Sets the insertion delay
2580                  *
2581                  * @param insertionDelay
2582                  *            The new insertion delay, or {@code null} to restore it to
2583                  *            the default value
2584                  * @return This preferences
2585                  */
2586                 public Preferences setInsertionDelay(Integer insertionDelay) {
2587                         options.getIntegerOption("InsertionDelay").set(insertionDelay);
2588                         return this;
2589                 }
2590
2591                 /**
2592                  * Returns the number of posts to show per page.
2593                  *
2594                  * @return The number of posts to show per page
2595                  */
2596                 public int getPostsPerPage() {
2597                         return options.getIntegerOption("PostsPerPage").get();
2598                 }
2599
2600                 /**
2601                  * Validates the number of posts per page.
2602                  *
2603                  * @param postsPerPage
2604                  *            The number of posts per page
2605                  * @return {@code true} if the number of posts per page was valid,
2606                  *         {@code false} otherwise
2607                  */
2608                 public boolean validatePostsPerPage(Integer postsPerPage) {
2609                         return options.getIntegerOption("PostsPerPage").validate(postsPerPage);
2610                 }
2611
2612                 /**
2613                  * Sets the number of posts to show per page.
2614                  *
2615                  * @param postsPerPage
2616                  *            The number of posts to show per page
2617                  * @return This preferences object
2618                  */
2619                 public Preferences setPostsPerPage(Integer postsPerPage) {
2620                         options.getIntegerOption("PostsPerPage").set(postsPerPage);
2621                         return this;
2622                 }
2623
2624                 /**
2625                  * Returns the number of characters per post, or <code>-1</code> if the
2626                  * posts should not be cut off.
2627                  *
2628                  * @return The numbers of characters per post
2629                  */
2630                 public int getCharactersPerPost() {
2631                         return options.getIntegerOption("CharactersPerPost").get();
2632                 }
2633
2634                 /**
2635                  * Validates the number of characters per post.
2636                  *
2637                  * @param charactersPerPost
2638                  *            The number of characters per post
2639                  * @return {@code true} if the number of characters per post was valid,
2640                  *         {@code false} otherwise
2641                  */
2642                 public boolean validateCharactersPerPost(Integer charactersPerPost) {
2643                         return options.getIntegerOption("CharactersPerPost").validate(charactersPerPost);
2644                 }
2645
2646                 /**
2647                  * Sets the number of characters per post.
2648                  *
2649                  * @param charactersPerPost
2650                  *            The number of characters per post, or <code>-1</code> to
2651                  *            not cut off the posts
2652                  * @return This preferences objects
2653                  */
2654                 public Preferences setCharactersPerPost(Integer charactersPerPost) {
2655                         options.getIntegerOption("CharactersPerPost").set(charactersPerPost);
2656                         return this;
2657                 }
2658
2659                 /**
2660                  * Returns whether Sone requires full access to be even visible.
2661                  *
2662                  * @return {@code true} if Sone requires full access, {@code false}
2663                  *         otherwise
2664                  */
2665                 public boolean isRequireFullAccess() {
2666                         return options.getBooleanOption("RequireFullAccess").get();
2667                 }
2668
2669                 /**
2670                  * Sets whether Sone requires full access to be even visible.
2671                  *
2672                  * @param requireFullAccess
2673                  *            {@code true} if Sone requires full access, {@code false}
2674                  *            otherwise
2675                  */
2676                 public void setRequireFullAccess(Boolean requireFullAccess) {
2677                         options.getBooleanOption("RequireFullAccess").set(requireFullAccess);
2678                 }
2679
2680                 /**
2681                  * Returns the positive trust.
2682                  *
2683                  * @return The positive trust
2684                  */
2685                 public int getPositiveTrust() {
2686                         return options.getIntegerOption("PositiveTrust").get();
2687                 }
2688
2689                 /**
2690                  * Validates the positive trust.
2691                  *
2692                  * @param positiveTrust
2693                  *            The positive trust to validate
2694                  * @return {@code true} if the positive trust was valid, {@code false}
2695                  *         otherwise
2696                  */
2697                 public boolean validatePositiveTrust(Integer positiveTrust) {
2698                         return options.getIntegerOption("PositiveTrust").validate(positiveTrust);
2699                 }
2700
2701                 /**
2702                  * Sets the positive trust.
2703                  *
2704                  * @param positiveTrust
2705                  *            The new positive trust, or {@code null} to restore it to
2706                  *            the default vlaue
2707                  * @return This preferences
2708                  */
2709                 public Preferences setPositiveTrust(Integer positiveTrust) {
2710                         options.getIntegerOption("PositiveTrust").set(positiveTrust);
2711                         return this;
2712                 }
2713
2714                 /**
2715                  * Returns the negative trust.
2716                  *
2717                  * @return The negative trust
2718                  */
2719                 public int getNegativeTrust() {
2720                         return options.getIntegerOption("NegativeTrust").get();
2721                 }
2722
2723                 /**
2724                  * Validates the negative trust.
2725                  *
2726                  * @param negativeTrust
2727                  *            The negative trust to validate
2728                  * @return {@code true} if the negative trust was valid, {@code false}
2729                  *         otherwise
2730                  */
2731                 public boolean validateNegativeTrust(Integer negativeTrust) {
2732                         return options.getIntegerOption("NegativeTrust").validate(negativeTrust);
2733                 }
2734
2735                 /**
2736                  * Sets the negative trust.
2737                  *
2738                  * @param negativeTrust
2739                  *            The negative trust, or {@code null} to restore it to the
2740                  *            default value
2741                  * @return The preferences
2742                  */
2743                 public Preferences setNegativeTrust(Integer negativeTrust) {
2744                         options.getIntegerOption("NegativeTrust").set(negativeTrust);
2745                         return this;
2746                 }
2747
2748                 /**
2749                  * Returns the trust comment. This is the comment that is set in the web
2750                  * of trust when a trust value is assigned to an identity.
2751                  *
2752                  * @return The trust comment
2753                  */
2754                 public String getTrustComment() {
2755                         return options.getStringOption("TrustComment").get();
2756                 }
2757
2758                 /**
2759                  * Sets the trust comment.
2760                  *
2761                  * @param trustComment
2762                  *            The trust comment, or {@code null} to restore it to the
2763                  *            default value
2764                  * @return This preferences
2765                  */
2766                 public Preferences setTrustComment(String trustComment) {
2767                         options.getStringOption("TrustComment").set(trustComment);
2768                         return this;
2769                 }
2770
2771                 /**
2772                  * Returns whether the {@link FcpInterface FCP interface} is currently
2773                  * active.
2774                  *
2775                  * @see FcpInterface#setActive(boolean)
2776                  * @return {@code true} if the FCP interface is currently active,
2777                  *         {@code false} otherwise
2778                  */
2779                 public boolean isFcpInterfaceActive() {
2780                         return options.getBooleanOption("ActivateFcpInterface").get();
2781                 }
2782
2783                 /**
2784                  * Sets whether the {@link FcpInterface FCP interface} is currently
2785                  * active.
2786                  *
2787                  * @see FcpInterface#setActive(boolean)
2788                  * @param fcpInterfaceActive
2789                  *            {@code true} to activate the FCP interface, {@code false}
2790                  *            to deactivate the FCP interface
2791                  * @return This preferences object
2792                  */
2793                 public Preferences setFcpInterfaceActive(boolean fcpInterfaceActive) {
2794                         options.getBooleanOption("ActivateFcpInterface").set(fcpInterfaceActive);
2795                         return this;
2796                 }
2797
2798                 /**
2799                  * Returns the action level for which full access to the FCP interface
2800                  * is required.
2801                  *
2802                  * @return The action level for which full access to the FCP interface
2803                  *         is required
2804                  */
2805                 public FullAccessRequired getFcpFullAccessRequired() {
2806                         return FullAccessRequired.values()[options.getIntegerOption("FcpFullAccessRequired").get()];
2807                 }
2808
2809                 /**
2810                  * Sets the action level for which full access to the FCP interface is
2811                  * required
2812                  *
2813                  * @param fcpFullAccessRequired
2814                  *            The action level
2815                  * @return This preferences
2816                  */
2817                 public Preferences setFcpFullAccessRequired(FullAccessRequired fcpFullAccessRequired) {
2818                         options.getIntegerOption("FcpFullAccessRequired").set((fcpFullAccessRequired != null) ? fcpFullAccessRequired.ordinal() : null);
2819                         return this;
2820                 }
2821
2822                 /**
2823                  * Returns whether Sone should clear its settings on the next restart.
2824                  * In order to be effective, {@link #isReallyClearOnNextRestart()} needs
2825                  * to return {@code true} as well!
2826                  *
2827                  * @return {@code true} if Sone should clear its settings on the next
2828                  *         restart, {@code false} otherwise
2829                  */
2830                 public boolean isClearOnNextRestart() {
2831                         return options.getBooleanOption("ClearOnNextRestart").get();
2832                 }
2833
2834                 /**
2835                  * Sets whether Sone will clear its settings on the next restart.
2836                  *
2837                  * @param clearOnNextRestart
2838                  *            {@code true} if Sone should clear its settings on the next
2839                  *            restart, {@code false} otherwise
2840                  * @return This preferences
2841                  */
2842                 public Preferences setClearOnNextRestart(Boolean clearOnNextRestart) {
2843                         options.getBooleanOption("ClearOnNextRestart").set(clearOnNextRestart);
2844                         return this;
2845                 }
2846
2847                 /**
2848                  * Returns whether Sone should really clear its settings on next
2849                  * restart. This is a confirmation option that needs to be set in
2850                  * addition to {@link #isClearOnNextRestart()} in order to clear Sone’s
2851                  * settings on the next restart.
2852                  *
2853                  * @return {@code true} if Sone should really clear its settings on the
2854                  *         next restart, {@code false} otherwise
2855                  */
2856                 public boolean isReallyClearOnNextRestart() {
2857                         return options.getBooleanOption("ReallyClearOnNextRestart").get();
2858                 }
2859
2860                 /**
2861                  * Sets whether Sone should really clear its settings on the next
2862                  * restart.
2863                  *
2864                  * @param reallyClearOnNextRestart
2865                  *            {@code true} if Sone should really clear its settings on
2866                  *            the next restart, {@code false} otherwise
2867                  * @return This preferences
2868                  */
2869                 public Preferences setReallyClearOnNextRestart(Boolean reallyClearOnNextRestart) {
2870                         options.getBooleanOption("ReallyClearOnNextRestart").set(reallyClearOnNextRestart);
2871                         return this;
2872                 }
2873
2874         }
2875
2876 }